BOS (Basic Orchestration System) MCP server

MCP-BOS is a modular, extensible Model Context Protocol server framework designed for Claude Desktop. It features automatic module discovery, declarative configuration, and support for the FastMCP standard, allowing you to easily extend AI application functionality without modifying core code.

Installation and Setup

Installing MCP-BOS

To get started with MCP-BOS, follow these steps:

1. Clone the repository:

git clone https://github.com/kinbos/mcp-bos.git
cd mcp-bos

2. Install the required dependencies:

uv pip install mcp[cli]

Configuring the Server

Edit the config.json file to configure the server and its modules:

{
  "global": {
    "server_name": "MCP-BOS",
    "debug": true,
    "log_level": "INFO",
    "transport": "stdio",
    "dependencies": ["mcp[cli]"]
  },
  "modules": {
    "hello_world": {
      "enabled": true,
      "message": "Hello, {}!"
    },
    "module_name": {
      "enabled": false,
      "param1": "value1"
    }
  }
}

The configuration file consists of two main sections:

• Global configuration: Set server name, debug mode, log level, and dependencies
• Module configuration: Enable/disable modules and configure their specific parameters

Running the Server

You can run the MCP-BOS server in several ways:

Direct Execution

Simply run the main script:

python main.py

Using UV

uv run main.py

Integration with Claude Desktop

To install the server for use with Claude Desktop:

mcp install main.py

Development and Testing

For testing and debugging, use the MCP Inspector:

mcp inspect main.py

Creating Custom Modules

Module Structure

To create a new module:

1. Create a directory for your module in the modules folder:

mkdir modules/my_module

2. Create the necessary files:

touch modules/my_module/__init__.py
touch modules/my_module/my_module.py

3. Implement the module interface:

# modules/my_module/my_module.py
from core.module_interface import ModuleInterface

class MyModule(ModuleInterface):
    def get_info(self):
        return {
            "name": "my_module",
            "version": "1.0.0",
            "description": "My custom module",
            "author": "Your Name",
            "email": "[email protected]",
            "website": "https://www.example.com"
        }
        
    def register(self, server):
        @server.tool()
        def my_tool(param: str) -> str:
            """Custom tool"""
            return f"Processing parameter: {param}"
            
        @server.resource("my://resource")
        def my_resource() -> str:
            """Custom resource"""
            return "Resource content"

4. Export your module class in the __init__.py file:

# modules/my_module/__init__.py
from .my_module import MyModule

# Export the module class
module_class = MyModule

5. Enable your module in the configuration file:

"modules": {
  "my_module": {
    "enabled": true
  }
}

6. Restart the server for the new module to be loaded

Troubleshooting

Module Not Loading

If your module isn't loading properly:

• Verify the module directory structure
• Confirm that the __init__.py file exports the module class
• Check that the module is enabled in the config file
• Examine the log output for detailed error information

Character Encoding Issues

If you encounter character encoding problems on Windows:

set PYTHONIOENCODING=utf-8

Connection Issues

If you have trouble connecting to Claude Desktop:

• Confirm that Claude Desktop is properly configured
• Verify that all dependencies are installed correctly
• Check the Claude Desktop log files for error messages

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "mcp-bos" '{"command":"python","args":["main.py"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "mcp-bos": {
            "command": "python",
            "args": [
                "main.py"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "mcp-bos": {
            "command": "python",
            "args": [
                "main.py"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect